Parkes observations for project P1226 semester 2023OCTS_06

Fast Radio Bursts(FRBs) are often proposed as useful cosmological probes, however much work is needed to better understand the foreground environment that it propgates through, such as the Galactic ISM and Milky Way Halo. We propose to observe three satellite dwarf spheroidal galaxies of the Milky Way to search for FRBs and pulsars. We plan to take advantage of the new CryoPAF's wide field of view to survey high stellar density dwarf satellite galaxies with substantial angular sizes: Fornax, Sculptor and Sagittarius II. Detections of FRBs and pulsars will allow us to measure the Circumgalactic Medium contribution to FRB dispersion and also the dark matter halos of these dwarf galaxies.

快速射电暴（Fast Radio Bursts, FRBs）常被视作极具应用价值的宇宙学探针，但目前仍需开展大量研究以更深入地理解其传播途经的前景环境，例如银河星际介质（Galactic ISM）与银河系晕（Milky Way Halo）。我们计划对银河系的3颗矮椭球卫星星系开展观测，以搜寻快速射电暴与脉冲星。本项目拟利用新型CryoPAF的大视场优势，对具有显著角尺寸的高恒星密度矮卫星星系——天炉座、玉夫座与人马座II进行巡天。探测到的快速射电暴与脉冲星将助力我们测量星系周介质（Circumgalactic Medium, CGM）对快速射电暴色散的贡献，以及这些矮星系的暗物质晕。